George E. Inger & Co. were Wholesale & Retail Chemists & Druggists. For some reason I didn't write down what city they were from or what year I found them. They ran the advertisement transcribed below for this preparation along with a few others.
SPANISH OIL OF PESTACIO-NUTS "The beauty of the raven tresses of the Spanish Ladies has excited the admiration of every visitor to Madrid. No other Hair Dressing Fluid is used but the expressed Oil of Pestachio-Nut, which is as common here with the mountain peasant as the court beauty." Gordon's Month in Spain.